Laser Projector
Hook up a laser diode (or several) to something to move them around and turn them on and off in a cool way. I can't remember the name of the device, but it takes two mirrors and moves them independently to direct the laser.
Hook up a laser diode (or several) to something to move them around and turn them on and off in a cool way. I can't remember the name of the device, but it takes two mirrors and moves them independently to direct the laser.